The more than 3000 year long history of Ancient Egypt has been divided into 8 or 9 periods, sometimes called Kingdoms. This modern-day division is somewhat arbitrarily based on the country's unity and wealth and the power of the central government. The Ancient Egyptians themselves did not group their rulers according to such criteria. They rather seem to have developed the notion of dynasties throughout their history. The Palermo Stone simply lists the kings one after the other, without any apparent need of grouping them. The Turin Kinglist, which is more recent, has grouped the kings acco…